规则动词的过去式变化如下：（1）一般情况下，动词词尾加 ed ，如：Worked； played ；wanted ；acted（2）以不发音的 e 结尾动词，动词词尾加 d，如：lived moved decided declined hoped judged raised wiped（3）以辅音字母 + y 结尾的动词，把 y 变为 i 再加 ed，如：Studied；tried ；copied ；justified ；cried；carried ；embodied ；emptied（4）以一个辅音字母结尾的重读闭音节动词，双写词尾辅音字母，再加 ed，如：Stopped； begged ；fretted； dragged； dropped； planned ；dotted ；dripped另外还有一些以非重读闭音节结尾的规则动词变过去分词也要双写最后一个辅音字母,再加"ed"。如：kidnap—kidnapped，worship—worshipped（5）以 ic 结尾的动词，要把 ic 变成 ick 再加 ed，如：picnic—picnicked； traffic—trafficked不规则动词变化如下：一、AAA 型（过去式、过去分词与原形相同）123456789原形costcutfithithurtletputreadset过去式costcutfithithurtletputreadsetshut过去分词costcutfithithurtletputreadsetshut含义值（多少）钱切，割，砍适合；合身伤害，伤痛撞，打让放读树立；创造；落山关闭；合拢10shut二、ABA 型（过去分词与原形相同，但与过去式不同）序号123三、 ABB 型（过去分词与过去式相同，但与原形不同）原 形123456789bringbuildburncatchdigfeelfightfindget过 去 式broughtbuiltburnt/burnedcaughtdugfeltfoughtfoundgot过去分词broughtbuiltburnt/burnedcaughtdugfeltfoughtfoundgot词义带来建立烧伤赶上挖掘感觉战斗发现得到原 形comebecomerun过 去 式camebecameran过去分词comebecomerun词义来变为跑；经营10hang11have/has12hear13hide14hold15keep16lay17learn18leave19lend20lose21make22mean23meet24pay25say26sell27send28shine29sink30sit31sleep32smell33spell34spill35spit36spoil37stand38sweep39teach40tell41think42understand43wake44winhung/hangedhadheardhidheldkeptlaidlearnt /learnedleftlentlostmademeant/meant/metpaidsaidsoldsentshonesunk/sanksatsleptsmeltspelled/speltspiltspatspoiltstoodswepttaughttoldthoughtunderstoodwaked/wokewonhung/hangedhadheardhidheldkeptlaidlearnt /learnedleftlentlostmademeant/meant/metpaidsaidsoldsentshonesunk/sunkensatsleptsmeltspelled/speltspiltspatspoiltst...
